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Home >> Infiniti >> 2001 >> QX4 RWD >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> IVIS (INFINITI Vehicle Immobilizer System - NATS) - Late - New >> IVIS (INFINITI Vehicle Immobilizer System - NATS) >> Trouble Diagnoses >> Symptom Matrix Chart 1

Symptom Matrix Chart 1

(Self-diagnosis related item) 

SYMPTOM MATRIX CHART 1

SYMPTOM Displayed "SELF-DIAG RESULTS" on CONSULT-II screen. DIAGNOSTIC PROCEDURE (Reference page) SYSTEM (Malfunctioning part or mode) REFERENCE PART NO. OF ILLUSTRATION ON NEXT PAGE
Security indicator lighting up (1) Engine cannot be started. ECM INT CIRC-IMMU DIAGNOSTIC PROCEDURE 1  ECM B
CHAIN OF ECM-IMMU DIAGNOSTIC PROCEDURE 2  In rare case, "CHAIN OF ECM-IMMU" might be stored during key registration procedure, even if the system is not malfunctioning. -
Open circuit in battery voltage line of IMMU circuit C1
Open circuit in ignition line of IMMU circuit C2
Open circuit in ground line of IMMU circuit C3
Open circuit in communication line between IMMU and ECM C4
Short circuit between IMMU and ECM communication line and battery voltage line C4
Short circuit between IMMU and ECM communication line and ground line C4
ECM B
IMMU A
DIFFERENCE OF KEY DIAGNOSTIC PROCEDURE 3  Unregistered key D
IMMU A
CHAIN OF IMMU-KEY DIAGNOSTIC PROCEDURE 4  Malfunction of key ID chip E
IMMU A
ID DISCORD, IMM-ECM DIAGNOSTIC PROCEDURE 5  System initialization has not yet been completed. F
ECM F
LOCK MODE DIAGNOSTIC PROCEDURE 7  LOCK MODE D
MIL staying ON Security indicator lighting up(1) DON'T ERASE BEFORE CHECKING ENG DIAG WORK FLOW  Engine trouble data and IVIS (NATS) trouble data have been detected in ECM -
(1) When IVIS (NATS) detects trouble, the security indicator lights up while ignition key is in the "ON" position.